As an introduction to the enneagram, Jeremiah and E discuss its history and general philosophy.  They briefly cover each of the nine personality types and categorize them into triads, while encouraging the listener to visit https://goodtotalks.com for a visual aid to help clarify some of the more detailed aspects of the enneagram's structure.  This is part one of four.  In later episodes, each of the three triads will be explored in more detail.